WO2005092996A1 - Non-aqueous polar ink composition - Google Patents
Non-aqueous polar ink composition Download PDFInfo
- Publication number
- WO2005092996A1 WO2005092996A1 PCT/EP2005/002503 EP2005002503W WO2005092996A1 WO 2005092996 A1 WO2005092996 A1 WO 2005092996A1 EP 2005002503 W EP2005002503 W EP 2005002503W WO 2005092996 A1 WO2005092996 A1 WO 2005092996A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ink composition
- glycol
- weight
- percent
- composition according
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/16—Writing inks
- C09D11/18—Writing inks specially adapted for ball-point writing instruments
Definitions
- Non-aqueous polar ink composition Non-aqueous polar ink composition
- the invention relates to a non-water-based writing ink for a writing instrument, in particular a ballpoint pen.
- a ballpoint pen is expected to a) impart a soft writing feel b) remain writable for a long time without a cap, that is to say it can be stored open for a long time c) forms no drops at the tip of the pen and d) provides a waterproof writing.
- Conventional ballpoint pens filled with a solvent-based paste, write easily due to their relatively high viscosity, form smaller drops at the tip, but can be stored for a long time and provide a waterproof font.
- the soft writing of such a ballpoint pen paste can be improved by significantly reducing the viscosity. This goal can be achieved if the thickening components, such as resins or polymers, are omitted or at least significantly reduced, as described in EP 0 738 302 B1.
- a disadvantage is that a low-viscosity ink of this type increases static leakage, i.e. tends to form drops at the tip when the ballpoint pen is vertically downwards.
- water-based inks are also described, which are prescribed from a ballpoint pen.
- these inks have the disadvantage that the water portion evaporates at the tip due to its volatility and leads to drying, so that an end cap is required to prevent this problem.
- Another disadvantage is that such inks can only contain water-soluble dyes, so that a completely waterproof font is not obtained.
- does such an ink contain pigments as coloring medium, the font becomes waterproof, but the risk of drying out at the tip is even greater.
- a non-aqueous polar ink composition comprising a) 1-40 percent by weight of at least one water-insoluble colorant, b) 50-98 percent by weight of at least one polar solvent, selected from the group consisting of glycols, glycol ethers, alcohols and mixtures thereof, c) 0.05-5 percent by weight of at least one crosslinked polymer swellable in the polar solvent used, selected from the group consisting of homo- and copolymers of acrylic acid or alkyl acrylates, crosslinked with polyalkenyl ethers, divinylglycol, allyl ether of pentaerythrol, allyl ether of sucrose or allyl ether of propylene, and crosslinked homo- and copolymers of maleic anhydride methyl vinyl ether, the percentages by weight being based in each case on the total weight of the ink composition, and the ink composition having a viscosity in
- the non-aqueous based ink composition according to the invention conveys a soft writing feel, remains writable for a long time without a cap, does not form any drops on the writing tip and provides a waterproof writing.
- the writing inks according to the invention show essentially no viscoelasticity.
- a non-aqueous polar ink composition is understood to be one which contains essentially no or only minor amounts, ie 0 to max. 8% by weight, preferably 0 to max. 5% by weight, more preferably 0 to max. Contains 3% by weight of water as a solvent.
- the non-aqueous polar ink composition according to the present invention is a solvent-based one.
- the non-aqueous ink according to the invention contains an insoluble polymer in dispersed form in combination with the specifically selected solvent system.
- Suitable insoluble polymers are crosslinked homopolymers or copolymers which swell up to 1000 times their original volume in a suitable polar solvent to form a three-dimensional network. Without being limited to this, it is believed that the three-dimensional network thus formed exerts a retention capacity on the ink stored therein and effectively prevents ink from leaking from the writing tip when the ballpoint pen is at rest.
- such crosslinked polymers which are swellable in polar solvents are high molecular weight homo- and copolymers of acrylic acid or alkyl acrylates, in particular C 1 -C 3 -alkyl acrylates, crosslinked with polyalkenyl ether, divinyl glycol, allyl ether of pentaerythrol, allyl ether of su crose or allyl ether of propylene, and crosslinked homo- and copolymers of maleic anhydride methyl vinyl ether, crosslinked with, for example, diolefins such as 1, 9-decadiene.
- crosslinked polymers which are swellable in polar solvents are available under the trade names Carbopol, Pemulen, Acritamer and Stabileze.
- Homo- and copolymers of acrylic acid or alkyl acrylates, in particular C 1 -C 3 o-alkyl acrylates, crosslinked with polyalkenyl ethers or divinyl glycol are preferably used.
- cross-linked polymers in water-based inks is described in the literature, as exemplified by EP 0 717 090 B1.
- water-based inks have the disadvantage that the use of water-insoluble dyes is not possible.
- Water-insoluble dyes are usually soluble in organic solvents that are not too polar.
- Another disadvantage of such water-based inks is the risk of drying out at the nib if the cap is not fitted.
- Most of the aqueous writing liquids known under the name “gel inks” are, however, produced with non-cross-linked polymers.
- the present invention provides for the use of 50-98 percent by weight of at least one polar solvent selected from the group consisting of glycols, glycol ethers, alcohols and mixtures thereof.
- a solvent mixture is preferably provided which is non-aqueous, but polar enough to swell cross-linked polymers, but on the other hand is not so polar that water-insoluble dyes do not dissolve in it.
- such a solvent mixture has 60-90 percent by weight of one or more glycols and 10-40 percent by weight of one or more alcohols and / or glycol ethers, in particular those which are immiscible with water, based on the total amount of solvent.
- glycols in particular hexylene glycol, propylene glycol and dipropylene glycol or a mixture thereof can be used.
- propylene glycol is a preferred polar solvent that has sufficient swellability for cross-linked polymers and sufficient dissolving properties for many water-insoluble dyes united.
- examples of an alcohol or glycol ether suitable according to the invention in particular those which are immiscible with water, but which have particularly good dissolving properties, in particular when using lacquered color salts, are - without being limited to this - 2-phenoxyethanol, benzyl alcohol, ⁇ -methylbenzyl alcohol, diethylene glycol monophenyl ether or propylene glycol monophenyl ether.
- the exact composition of the solvent depends on the requirements of the solubility of the colorants used or the dispersibility of the pigments used and the swelling capacity of the crosslinked polymers used and can be easily determined by a person skilled in the art.
- 1 to 40 preferably 1 to 30, particularly preferably 2 to 20 percent by weight of at least one water-insoluble colorant are used.
- dyes, pigments or mixtures thereof can be used as colorants.
- Particularly suitable dyes include lacquered color salts, such as, but not limited to, solvent blue 38, solvent blue 43, solvent red 39, solvent black 46, solvent yellow 47.
- lacquered color salts such as, but not limited to, solvent blue 38, solvent blue 43, solvent red 39, solvent black 46, solvent yellow 47.
- the use of pigments in finely dispersed form is also possible. Examples include Pigment Black 7, Pigment Blue 15.3, Pigment Green 7, Pigment Red 122.
- the soft writing behavior of a ballpoint pen is essentially controlled by the viscosity of the ink and can be improved by lubricants contained in the ink, such as oleic acid. If the viscosity is too low, a scratchy feeling, if it is too high, there may be a slowing writing sensation.
- the viscosity of the present ink composition is determined by the proportions of the dyes which have a thickening effect, and in particular by the proportion of the crosslinked polymers and their characteristic properties, such as the degree of crosslinking. In this context, it should be noted that cross-linked polymers are sensitive to ions, especially metal ions.
- cationic impurities in the dyes used can lower the viscosity of the mixture. ken.
- the optimum viscosity of the soft writing ink described here can, depending on the design of the writing tips used, be in a range from 30 to 6,000 mPas, preferably from 100 to 4,000 mPas and particularly preferably from 100 to 2,000 mPas, measured at 20 ° C. with a Haake Rheostress RS600 with cone CS 35/2 ° at a shear rate of 60 s "1 .
- the final adjustment of the viscosity is preferably carried out in a known manner by neutralizing acidic groups, such as COO " groups, of the crosslinked polymers.
- acidic groups such as COO " groups
- Inorganic or, preferably, organic bases such as triethanolamine, aminomethylpropanol, triisopropanolamine, which are usually used in an amount of 0.1 to 3% by weight can also be used, and the ink for viscosity adjustment can additionally contain the binders and polymers known for writing inks, provided that they are compatible with the crosslinked polymers and the other formulation constituents, as well as the use of known additives such as anti-corrosion agents and defoamers , Complexing agents or cap-off additives are possible.
- the inks shown in Tables 1 and 2 below were mixed using a dissolver disk at 50 ° C.
- the crosslinked polymer was first dispersed in the solvent system at 1800 revolutions / min for about 2 hours. The remaining constituents were then added in the order shown in the table and stirred for about another hour.
- polypropylene leads were filled with tips 133NS / 07TC-ES 405 from Premec and written on Baumgartner test paper on a Hutt writing test device at room temperature under the following conditions: writing speed 9 m / min, paper feed 5 cm / min, writing angle 70 °, rotation 1 rpm, load 100 g.
- Solvent Blue 4 the function of the neutralizing agent.
- crosslinked polymers in particular increases the ink release of the inks according to the invention, which cause complete swelling, by approximately 25%. This leads to a homogeneous typeface and to a higher color intensity than in otherwise similar inks, but which contain non-crosslinked polymers, and represents a further advantage of the inks according to the invention; see. in particular Examples B1 to B5 according to the present invention.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502005000030T DE502005000030D1 (en) | 2004-03-15 | 2005-03-09 | Non-aqueous polar ink composition |
CN2005800080679A CN1930254B (en) | 2004-03-15 | 2005-03-09 | Non-aqueous polar ink composition |
JP2007503240A JP2007529582A (en) | 2004-03-15 | 2005-03-09 | Non-aqueous polar ink composition |
EP05715887A EP1601730B1 (en) | 2004-03-15 | 2005-03-09 | Non-aqueous polar ink composition |
US10/588,133 US20070221090A1 (en) | 2004-03-15 | 2005-03-09 | Non-Aqueous Polar Ink Composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004012479A DE102004012479A1 (en) | 2004-03-15 | 2004-03-15 | Non-aqueous polar ink composition |
DE102004012479.5 | 2004-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005092996A1 true WO2005092996A1 (en) | 2005-10-06 |
Family
ID=34961806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/002503 WO2005092996A1 (en) | 2004-03-15 | 2005-03-09 | Non-aqueous polar ink composition |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070221090A1 (en) |
EP (1) | EP1601730B1 (en) |
JP (1) | JP2007529582A (en) |
CN (1) | CN1930254B (en) |
AT (1) | ATE331768T1 (en) |
DE (2) | DE102004012479A1 (en) |
WO (1) | WO2005092996A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113248658A (en) * | 2021-06-17 | 2021-08-13 | 韶关盛怡文具有限公司 | High-viscoelasticity resin special for space pen ink, preparation method and ink using resin |
EP3568119B1 (en) | 2016-11-11 | 2022-05-18 | Kao Germany GmbH | Liquid composition comprising hair direct dyes and one or more diols |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ296589B6 (en) * | 2005-02-16 | 2006-04-12 | Centropen A. S. | Ink exhibiting increased resistance to drying |
DE102005022425B4 (en) * | 2005-05-10 | 2009-10-22 | J. S. Staedtler Gmbh & Co. Kg | Ink with extended cap-off-time |
CN103897483B (en) * | 2014-03-28 | 2015-12-02 | 天津大学 | A kind of neutral blue ink and preparation method thereof |
CN103897482B (en) * | 2014-03-28 | 2015-12-09 | 天津大学 | A kind of neutral carbon black ink and preparation method thereof |
JP6507926B2 (en) * | 2014-12-26 | 2019-05-08 | ぺんてる株式会社 | Oil-based ink for ballpoint pen |
CN105441049B (en) * | 2015-12-02 | 2018-07-10 | 四川安东油气工程技术服务有限公司 | Well fracturing soluble temporarily stifled material, diverting agent, fracturing fluid and preparation method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3425779A (en) * | 1966-09-01 | 1969-02-04 | Paul C Fisher | Pressurized marking instrument |
GB2094820A (en) * | 1981-03-03 | 1982-09-22 | Fisher Paul C | Pressurised roller pens and inks for such pens |
EP0196162A2 (en) * | 1985-02-22 | 1986-10-01 | Scott Bader Company Limited | A method of thickening non-aqueous liquids |
EP0587291A1 (en) * | 1992-08-13 | 1994-03-16 | Kabushiki Kaisha Pilot | Ink composition for a ball-point pen |
Family Cites Families (17)
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US4789399A (en) * | 1981-03-03 | 1988-12-06 | Paul C. Fisher | Pressurized roller pens and inks for such pens |
TW373007B (en) * | 1994-05-30 | 1999-11-01 | Sakura Color Prod Corp | Aqueous ball point ink composition |
JP3753490B2 (en) * | 1997-01-28 | 2006-03-08 | 三菱鉛筆株式会社 | Oil-based ink for ballpoint pens |
JP3121571B2 (en) * | 1997-10-09 | 2001-01-09 | 株式会社パイロット | Oil-based ballpoint pen ink |
WO2000014168A1 (en) * | 1998-09-04 | 2000-03-16 | Mitsubishi Pencil Kabushiki Kaisha | Ink for ball-point pen and ball-point pen using the same |
JP2001158869A (en) * | 1999-09-20 | 2001-06-12 | Sakura Color Prod Corp | Oil-based ink for writing tool |
JP2001098202A (en) * | 1999-09-27 | 2001-04-10 | Pentel Corp | Oil based ink and method for its preparation |
AU2001242755A1 (en) * | 2000-03-22 | 2001-10-03 | Mitsubishi Pencil Kabushiki Kaisha | Writing implement |
CA2376123C (en) * | 2000-04-03 | 2008-03-25 | Mitsubishi Pencil Co., Ltd. | Oil-based ballpoint pen ink composition and oil-based ballpoint pen |
US6730154B2 (en) * | 2000-04-13 | 2004-05-04 | Sakura Color Products Corporation | Polychromic ink composition depending on viewing angle |
EP1295916B1 (en) * | 2000-06-07 | 2014-11-26 | Seiko Epson Corporation | Ink-jet recording ink, ink-jet recording ink set, recording method, print, and ink-jet recording apparatus |
US6797748B2 (en) * | 2001-06-08 | 2004-09-28 | Bic Corporation | Polyurethane based inks for writing instruments |
US20030027893A1 (en) * | 2001-06-28 | 2003-02-06 | Eastman Kodak Company | Ink jet printing method |
JP2003073606A (en) * | 2001-09-05 | 2003-03-12 | Tombow Pencil Co Ltd | Ink for ball-point pen and ball-point pen |
JP2003138196A (en) * | 2001-10-30 | 2003-05-14 | Tombow Pencil Co Ltd | Ink for ballpoint pen and ballpoint pen charged with the ink |
JP3803766B2 (en) * | 2001-11-29 | 2006-08-02 | ぺんてる株式会社 | Oil-based ink composition for ballpoint pens |
KR100978825B1 (en) * | 2001-12-04 | 2010-08-30 | 아그파-게바에르트 엔.브이. | Composition containing a polymer or copolymer of a 3,4-dialkoxythiophene and non-aqueous solvent |
-
2004
- 2004-03-15 DE DE102004012479A patent/DE102004012479A1/en not_active Ceased
-
2005
- 2005-03-09 EP EP05715887A patent/EP1601730B1/en active Active
- 2005-03-09 WO PCT/EP2005/002503 patent/WO2005092996A1/en active Application Filing
- 2005-03-09 US US10/588,133 patent/US20070221090A1/en not_active Abandoned
- 2005-03-09 AT AT05715887T patent/ATE331768T1/en not_active IP Right Cessation
- 2005-03-09 CN CN2005800080679A patent/CN1930254B/en active Active
- 2005-03-09 DE DE502005000030T patent/DE502005000030D1/en active Active
- 2005-03-09 JP JP2007503240A patent/JP2007529582A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3425779A (en) * | 1966-09-01 | 1969-02-04 | Paul C Fisher | Pressurized marking instrument |
US3425779B1 (en) * | 1966-09-01 | 1984-12-25 | ||
GB2094820A (en) * | 1981-03-03 | 1982-09-22 | Fisher Paul C | Pressurised roller pens and inks for such pens |
EP0196162A2 (en) * | 1985-02-22 | 1986-10-01 | Scott Bader Company Limited | A method of thickening non-aqueous liquids |
EP0587291A1 (en) * | 1992-08-13 | 1994-03-16 | Kabushiki Kaisha Pilot | Ink composition for a ball-point pen |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3568119B1 (en) | 2016-11-11 | 2022-05-18 | Kao Germany GmbH | Liquid composition comprising hair direct dyes and one or more diols |
CN113248658A (en) * | 2021-06-17 | 2021-08-13 | 韶关盛怡文具有限公司 | High-viscoelasticity resin special for space pen ink, preparation method and ink using resin |
CN113248658B (en) * | 2021-06-17 | 2022-04-19 | 韶关盛怡文具有限公司 | High-viscoelasticity resin special for space pen ink, preparation method and ink using resin |
Also Published As
Publication number | Publication date |
---|---|
US20070221090A1 (en) | 2007-09-27 |
JP2007529582A (en) | 2007-10-25 |
EP1601730A1 (en) | 2005-12-07 |
ATE331768T1 (en) | 2006-07-15 |
DE502005000030D1 (en) | 2006-08-10 |
CN1930254A (en) | 2007-03-14 |
EP1601730B1 (en) | 2006-06-28 |
DE102004012479A1 (en) | 2005-10-06 |
CN1930254B (en) | 2011-07-20 |
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